Manitowoc RF0244, RF0266, RF0385, RF0399, RF0300 Technician's Manual

Technician’s

Handbook

This manual is updated as new information and models

are released. Visit our website for the latest manual.

www.manitowocice.com

America’s #1 Selling Ice Machine

Manitowoc

R Model

Flake & Nugget

Part Number 000007661 7/10

Read These Before Proceeding:

!

Caution

Proper installation, care and maintenance are
essential for maximum performance and trouble­free operation of your Manitowoc equipment. If
you encounter problems not covered by this
handbook, do not proceed, contact Manitowoc
Foodservice Group. We will be happy to provide
assistance.

Important

Routine adjustments and maintenance
procedures outlined in this handbook are not
covered by the warranty.

! Warning

PERSONAL INJURY POTENTIAL

Do not operate equipment that has been
misused, abused, neglected, damaged, or
altered/modified from that of original
manufactured specifications.

This appliance is not intended for use by
persons (including children) with reduced
physical, sensory or mental capabilities, or
lack of experience and knowledge, unless
they have been given supervision
concerning use of the appliance by a person
responsible for their safety.

We reserve the right to make prod uct

improvements at any time. Specifications and

design are subject to change without notice.

Part Number 000007661 7/10 3

Table of Contents

General Information

Model Numbers . . . . . . . . . . . . . . . . . . . . .7

Self Contained

Air & Water-Cooled Models . . . . . . . . .7

QuietQube Remote Air-cooled Models with

Remote Condensing Units . . . . . . . . .7

Model/Serial Number . . . . . . . . . . . . . . . .8

Manitowoc Cleaner and Sanitizer . . . . . . 8

Ice Machine Warranty Informatio n . . . . .8

Installation

Location of Ice Machine . . . . . . . . . . . . . .9

Installation Requirements . . . . . . . . . . . .9

Potable Water Requirements . . . . . . . . . .10

Drain Connections . . . . . . . . . . . . . . . . . .10

Ice Machine Clearance Requirements . .11
Cooling Tower Applications

(Water-Cooled Models Only) . . . . . . . . . .12

Heat of Rejection . . . . . . . . . . . . . . . . . . .13

RF Models . . . . . . . . . . . . . . . . . . . . . .13

RN Models . . . . . . . . . . . . . . . . . . . . .13

Electrical Service . . . . . . . . . . . . . . . . . . .13

Voltage . . . . . . . . . . . . . . . . . . . . . . . .13

Fuse/Circuit Breaker . . . . . . . . . . . . . . 14

Ground Fault Interrupter Circuit (GFIC) 14

Maintenance

Cleaning and Sanitizing . . . . . . . . . . . . . .15

Exterior Cleaning . . . . . . . . . . . . . . . . .15

RF Models Cleaning/

Sanitizing Procedures . . . . . . . . . . . . .16

RN Models Cleaning/

Sanitizing Procedure . . . . . . . . . . . . . .22

Cleaning the Condenser . . . . . . . . . . .24

Removal from Service/Winterization . . . 25

4 Part Number 000007661 7/10

Operation

Ice Making Sequence of Operation . . . . 27

Self-Contained Air-Cooled
RF0244/RF0266/RF0385/

RF0388/RF0399 . . . . . . . . . . . . . . . . . 27

Self-Contained Air-Cooled

RF0300 . . . . . . . . . . . . . . . . . . . . . . . . 27

Self-Contained Air-Cooled

RF0650/RF1200/RF2300 . . . . . . . . . . 28

QuietQube Remote Air-cooled Models with
Remote Condensing Units

RF1200C/RF2300C . . . . . . . . . . . . . . 29

Self-Contained Air-cooled &

Water-Cooled RN0400 . . . . . . . . . . . . 30

Self-Contained Air-Cooled &

Water-Cooled RN1000/RN1400 . . . . . 31

QuietQube Remote Air-cooled Models with
Remote Condensing Units

RN1000C/RN1200C . . . . . . . . . . . . . . 32

Thermostat Settings . . . . . . . . . . . . . . . . 34

RF Models . . . . . . . . . . . . . . . . . . . . . 34

Troubleshooting

Electrical Flowcharts . . . . . . . . . . . . . . . . 37

RF0244/RF0266RF0385//RF00388/

RF0399 Air & Water . . . . . . . . . . . . . . 38

RF0300 Air & Water . . . . . . . . . . . . . . 43

RF0650/RF1200 Air & Water . . . . . . . 48

RF2300 Air & Water . . . . . . . . . . . . . . 53

RN1000/RN1400 Air & Water . . . . . . . 60

RN1000C/RN1200C QuietQube . . . . . 68

RF1200C QuietQube . . . . . . . . . . . . . 78

RF2300C QuietQube . . . . . . . . . . . . . 84

Capillary Tube Models . . . . . . . . . . . . . . . 91

Thermostatic Expans ion Valve Models . 92

Part Number 000007661 7/10 5

Component Specifications

Bin Thermostat . . . . . . . . . . . . . . . . . .93

Low Temperature Thermostat . . . . . . .93

High Pressure Cutout (HPCO) Control 93
Low Pressure Cutout (LPCO) Control .94

Fan Cycle Control . . . . . . . . . . . . . . . .94

Filter-Driers . . . . . . . . . . . . . . . . . . . . .95

Suction Cleanup Filter-Drier . . . . . . . .95

Total System Refrigerant Charge . . . .96

Charts

Cycle Times/24-Hour Ice Production/

Refrigerant Pressure Charts . . . . . . . . . .97

RF0244A . . . . . . . . . . . . . . . . . . . . . . .98

RF0266A . . . . . . . . . . . . . . . . . . . . . . .99

RF0385A . . . . . . . . . . . . . . . . . . . . . . .100

RF0388A . . . . . . . . . . . . . . . . . . . . . . .101

RF0399A . . . . . . . . . . . . . . . . . . . . . . .102

RF0300A . . . . . . . . . . . . . . . . . . . . . . .103

RF0650A . . . . . . . . . . . . . . . . . . . . . . .104

RF1200A . . . . . . . . . . . . . . . . . . . . . . .105

RF1200W . . . . . . . . . . . . . . . . . . . . . .106

RF2300A . . . . . . . . . . . . . . . . . . . . . . .107

RF2300W . . . . . . . . . . . . . . . . . . . . . .108

RN1000A . . . . . . . . . . . . . . . . . . . . . . .109

RN1000W . . . . . . . . . . . . . . . . . . . . . .110

RN1400A . . . . . . . . . . . . . . . . . . . . . . .111

RN1400W . . . . . . . . . . . . . . . . . . . . . .112

RN1078C . . . . . . . . . . . . . . . . . . . . . .113

RN1278C . . . . . . . . . . . . . . . . . . . . . .114

RF1278C . . . . . . . . . . . . . . . . . . . . . . .115

RF2378C . . . . . . . . . . . . . . . . . . . . . . .116

6 Part Number 000007661 7/10

Diagrams

Wiring Diagrams . . . . . . . . . . . . . . . . . . . 117

RF0244/RF0266/RF0385/

RF0388/RF0399 Air-Cooled . . . . . . . . 118

RF0300 Air-Cooled . . . . . . . . . . . . . . . 120

RF0650 - RF1200 Air-Cooled . . . . . . . 122

RF1200 Water-Cooled . . . . . . . . . . . . 124

RF2300 Air-Cooled & Water-cooled . . 126
RN1000/RN1400 Air & Water Cooled 128
RN1000C QuietQube Head Section . . 129
RN1200C QuietQube Head Section . . 130
RN2300C QuietQube Head Section . . 132

RCU Condensing Unit 1ph . . . . . . . . . 134

RCU Condensing Unit 3ph . . . . . . . . . 135

Refrigeration Tubing Sche matics . . . . . 136

RF0244/RF0266/RF0388/RF0399

RF0300/RF0650 Air-cooled . . . . . . . . 136

RF1200 Air-cooled . . . . . . . . . . . . . . . 138

RF1200 Water-cooled . . . . . . . . . . . . 140

RF2300 Air-cooled . . . . . . . . . . . . . . . 142

RF2300 Water-cooled . . . . . . . . . . . . 144

RN1000/RN1400 Air & Water-cooled . 146
RN1000C QuietQube Head Section &

RCU1075 Condensing Unit . . . . . . . . 148

RN1200C QuietQube Head Section &

RCU1275 Condensing Unit . . . . . . . . 150

RN2300C QuietQube Head Section &

RCU2375 Condensing Unit . . . . . . . . 152

Part Number 000007661 7/10 7

General Information

Model Numbers

SELF CONTAINED
AIR & WATER-COOLED MODELS

QUIETQUBE REMOTE AIR-COOLED MODELS
WITH REMOTE CONDENSING UNITS

Flake Models

Self Storage

Air-Cooled

Self Storage

Water-Cooled

Modular

Air-Cooled

Modular

Water-

Cooled

RF0244A – – –
RF0266A – – –
RF0385A – – –
RF0388A – – –
RF0399A – – –

– – RF0300A –
– – RF0650A –
– – RF1200A –
– – RF2300A –

Nugget Models

Self Storage

Air-Cooled

Self Storage

Water-Cooled

Modular

Air-Cooled

Modular

Water-

Cooled

– – RN1008A RN1009W
– – RN1408A RN1409W

Flake Models

QuietQube Head

RCU Remote

Condensing Unit

RF1278C RCU1275
RF2378C RCU2375

Nugget Models

QuietQube Head

RCU Remote

Condensing Unit

RN1078C RCU1075
RN1278C RCU1275

8 Part Number 000007661 7/10

Model/Serial Number

These numbers are required when requesting
information from your local Manitowoc Distributor, or
Manitowoc Ice. The model and serial number are
listed on the MODEL/SERIAL NUMBER DECAL
affixed to the ice machine.

Manitowoc Cleaner and Sanitizer

Manitowoc Ice Machine Cleaner and Sanitizer are
available in 16 oz. (473 ml) bottles. These are the only
cleaners and sanitizers approved for use with
Manitowoc products.

Ice Machine Warranty Information

Warranty information for all ice machine models is
available on our website at www.manitowocice.com.

Cleaner Part Number Sanitizer Part Number

16 oz. 000000084 16 oz. 9405653

1 gal N/A 1 gal. 9405813

Part Number 000007661 7/10 9

Installation

Location of Ice Machine

The location selected for the ice machine must meet
the following criteria. If any of these criteria are not
met, select another location.

• The location must be free of airborne and other
contaminants.

• The location must not be near heat-generating
equipment or in direct sunlight.

• The location must be capable of supporting the
weight of the ice machine and a full bin of ice.

• The location must allow enough clearance for
water, drain and electrical connections in the rear
of the ice machine.

• The location must not obstruct airflow through or
around the ice machine.

Installation Requirements

• The air temperature must be at least 50°F (10°C),
but must not exceed 110°F (43°C).

• The water temperature must be at least 40°F
(4°C), but must not exceed 90°F (32°C).

• The ice machine and bin must be level.

• Vent the ice machine and bin drains separately.

• Bin drain termination must have an air gap.

• RF Models Only: A backflow preventer is required
on water inlet lines.

• Routine adjustments and maintenance procedures
outlined in this manual are not covered by the
warranty.

10 Part Number 000007661 7/10

Potable Water Requirements

• Plumbing must conform to local codes.

• Do not connect the ice machine to a hot water
supply . Be sure all hot water restrictors installed for
other equipment are working. (Check valves on
sink faucets, dishwashers, etc.)

• If water pressure exceeds maximum pressure
(70 psig [483 kPa] RN1000; 80 psig [552 kPa] for
all other models) obtain a water pressure regulator
from your Manitowoc distributor.

• A water shut-off valve is required to clean the ice
machine.

• A union for both the ice making and condenser
water lines is required.

• Water inlet lines require insulation to prevent
condensation.

• RF Models: A backflow preventer is required on
water inlet lines.

Drain Connections

• Drain lines must have a 1.5 inch drop per 5 feet of
run (2.5 cm per meter), and must not create traps.

• The floor drain must be large enough to
accommodate drainage from all drains.

• Separate insulated bin and water-cooled
condenser drain lines are required.

• The bin and ice machine drains require a vent.

Part Number 000007661 7/10 11

Ice Machine Clearance Requirements

* Water-Cooled Onl y - There is no minimum clearance requir ed. This

value is recommended for efficie nt operation and servicing only.

NOTE: Allowance must be made for removal when the
ice machine is built-in. Monthly removal of the top
panel is required for cleaning and sanitizing.

Head

Sections

Self-

Contained

Air-Cooled

Self-

Contained

Water-Cooled*

QuietQube
Air-Cooled

Back 5" (12.7 cm) 5" (12.7 cm) 0" (0 cm)

Sides/Top 8" (20.3 cm) 8" (20.3 cm) 0" (20 cm)

RCU Units

Remote Condensing Unit*

Front/Back 24" (61.0 cm)

Sides/Top 6" (15.2 cm)*

12 Part Number 000007661 7/10

Cooling Tower Applications
(Water-Cooled Models Only)

A water cooling tower installation does not require
modification of the ice machine. The water regulator
valve for the condenser continues to control the
refrigeration discharge pressure.

It is necessary to know the amount of heat rejection,
and pressure drop through the condenser and water
valves (inlet and outlet) when using a cooling tower on
an ice machine.

• Water entering the condenser must not be lower
than 37°F (3°C) or exceed 90°F (32°C).

• Water flow through the condenser must not
exceed 5 gal. (19 L) per minute.

• Allow for a pressure drop of 7 psi (48 kPa)
between the condenser water inlet and the outlet
of the ice machine.

• Water exiting the condenser must not exceed
110°F (43°C).

Part Number 000007661 7/10 13

Heat of Rejection

RF MODELS

RN MODELS

1

The figure shown is an average.

Electrical Service

VOLTAGE

The maximum allowable volt age variation is ± 10% of
the rated voltage on the ice machine model/serial
number plate at compressor start-up.

Model Heat of Rejection

1

RF0244 2,400 BTUH (605 Kcal/hr)
RF0266 2,400 BTUH (605 Kcal/hr)
RF0385 3,500 BTUH (882 Kcal/hr)
RF0388 3,500 BTUH (882 Kcal/hr)
RF0399 3,500 BTUH (882 Kcal/hr)
RF0300 3,500 BTUH (882 Kcal/hr)
RF0650 7,700 BTUH (1941 Kcal/hr)
RF1200 14,000 BTUH (3529 Kcal/hr)
RF2300 29,500 BTUH (7436 Kcal/hr)

Series

Ice Machine

Heat of Rejection

1

Air-Cooled Water-Cooled

RN1000 - 50/60 Hz

11,300 BTU/hr

(2848 Kcal/hr)

12,800 BTU/hr

(3226 Kcal/hr)

RN1400 - 50 Hz

16,000 BTU/hr

(4032 Kcal/hr)

16,400 BTU/hr

(4133 Kcal/hr)

RN1400 - 60 Hz

15,500 BTU/hr

(3906 Kcal/hr)

15,500 BTU/hr

(3906 Kcal/hr)

!

Warning

All wiring must conform to local, state and national
codes.

14 Part Number 000007661 7/10

FUSE/CIRCUIT BREAKER

A separate fuse/circuit breaker mu st be provided for
each ice machine. Circuit breakers must be H.A.C.R.
rated (does not apply in Canada).

GROUND FAULT INTERRUPTER CIRCUIT (GFIC)

A GFCI/GFI circuit protection is not recommended
with our equipment. If a GFCI/GFI is required by code
a GFCI/GFI breaker rather than outlet must be used to
avoid intermittent nuisance trips.

!

Warning

The ice machine must be grounded in accordance
with national and local electrical codes.

Part Number 000007661 7/10 15

Maintenance

Cleaning and Sanitizing

Maintenance procedures covered in this manual are
not covered by the warranty.

EXTERIOR CLEANING

Remove dust and dirt off exterior surfaces with mild
household dish-washing detergent and warm water.
Wipe dry with a clean, soft cloth.

!

Caution

Use only Manitowoc approved Ice Machine
Cleaner (part number 000000084) and Sanitizer
(part number 9405653). Do not mix Cleaner and
Sanitizer solutions together. It is a violation of
Federal law to use these solutions in a manner
inconsistent with their labeling. Read and
understand all labels printed on bottles before
use.

!

Warning

Wear rubber gloves and safety goggles (and/or
face shield) when handling ice machine Cl eaner
or Sanitizer.

16 Part Number 000007661 7/10

RF MODELS CLEANING/SANITIZING
PROCEDURES

Cleaning/Sanitizing Procedure

This procedure must be performed once every month.

• All ice must be removed from the bin

• The ice machine and bin must be disassembled
cleaned and sanitized

• The ice machine produces ice with the cleaner and
sanitizer solutions

• All ice produced during the cleaning and sanitizing
procedure must be discarded

Procedure to Clean/Sanitize

Use Ice Machine Cleaner part number 000000084.
Use Ice Machine Sanitizer part number 9405653.
Step 1 Remove front and top covers and set the

toggle switch to the OFF position.

Step 2 Remove all ice from the bin.
Step 3 T urn off the ice making water supply and drain

water from evaporator and reservoir.

Step 4 Remove the top cover from water reservoir.
Step 5 Follow the chart and premix cleaner and

water.

Amount of Water

Amount of Cleaner

Part Number 000000084

1 gallon (4 Liters) 3 ounces (90 ml)

Part Number 000007661 7/10 17

Step 6 Fill the evaporator and reservoir with cleaning
solution.

Step 7 Move the toggle switch to the ON position.
The ice machine will make ice with the cleaning
solution and deposit the ice in the bin. Add the
remaining cleaner/water solution as the water level in
the reservoir drops.

NOTE: Do not allow the cleaner/water level to drop
below the minimum water level. The ice machine will
discontinue the cleaning cycle if the water float switch
opens.

Step 8 After all of the cleaner/water solution has
been added turn on the ice making water supp ly.
Continue the freeze cycle for 10 minutes to remove
the cleaning solution from the water circuit.

Prop Float Up to Prevent Low

Water Level Shutdown

18 Part Number 000007661 7/10

Step 9 Place the toggle switch in the OFF position.
Step 10 Refer to disassembly for cleaning/sanitizing

and remove parts for hand cleaning/sanitizing.

• Hand clean all parts

• Rinse all parts with clear potable water

• Sanitize all parts - do not rinse after sanitizing

• S pray all interior bin surfaces with sanitizer (do not
rinse sanitized areas).

• S pray evaporator discharge spout

Step 11 Reassemble ice machin e.
Step 12 Turn off the ice making water supply.

Part Number 000007661 7/10 19

Step 13 Refer to chart and premix water and
sanitizer.

Step 14 Fill the evaporator and reservoir with
sanitizer/water solution.

Step 15 Move the toggle switch to the ON po sition.
The ice machine will make ice with the sanitizer/water
solution and deposit the ice in the bin. Add the
remaining sanitizer/water solution when the water
level in the reservoir drops.

NOTE: Do not allow the sanitizer/water level to drop
below the minimum water level. The ice machine will
discontinue the cleaning cycle if the water float switch
opens.

Step 16 After all of the sanitizer/water solution has
been added to the reservoir, turn on the ice making
water supply.

Step 17 Continue the freeze cycle for 30 minutes and
then discard all ice produced.

Amount of Water Amount of Sanitizer

1 Gallons (4 L) Water 1/2 ounce (15 ml)

20 Part Number 000007661 7/10

Heavily Scaled Cleaning Procedure

Perform this procedure if you have some or all of these
symptoms.

• Excessive grinding, popping or squealing noises
from the evaporator

• Grinding noise from gearbox

• Ice machine trips speed sensor

NOTE: A Cleaning/Saniti zi ng Procedure must be
performed after this procedure.

Procedure to Clean Heavily Scaled Flake Ice
Machines

Step 1 Remove front and top covers and set the

toggle switch to the OFF position.

Step 2 Remove all ice from the bin.
Step 3 Turn off the ice making water supply.
Step 4 Remove the top cover from water reservoir.

Part Number 000007661 7/10 21

Step 5 Refer to chart below:
Premix cleaner with lukewarm water in a

non-metallic container.

Step 6 Remove all water from the evaporator and

water reservoir. Add the entire cleaner/water solution
and re-install the reservoir cover.

Leave the cleaner/water solution in the evaporator
for a minimum of 4 hours.

Step 7 Remove all cleaner/water from the evaporator

and water reservoir.
Step 8 Follow the standard cleaning and sanitizing

procedures.

Model

Water

Reservoir

Capacity

Mix Cleaner and Water

Use Ice machine nickel safe

cleaner, part number

000000084 only

Cleaner Water

RF0244
RF0266
RF0385
RF0388
RF0399

14 oz (400 ml) 9 oz (266 ml) 5 oz (148 ml)

RF0300
RF0650

17 oz (500 ml) 11 oz (325 ml) 6 oz (177 ml)

RF1200 34 oz (1 L) 23 oz (680 ml) 11 oz (325 ml)
RF2300 68 oz (2 L) 46 oz (1.3 L) 22 oz (650 ml)

22 Part Number 000007661 7/10

RN MODELS CLEANING/SANITIZING PROCEDURE

Use Ice Machine Cleaner part number 000000084.
Use Ice Machine Sanitizer part number 94-0565-3.

Step 1 Remove all ice from the bin/dispenser.
Step 2 Remove front and top covers.
Step 3 Mix a solution of cleaner and water.

Step 4 To start a cleaning cycle, depress the CLEAN

switch to drain the water from the evaporator. Wait for
the LOW WATER light to energize.

Step 5 Remove cover from the cleaning cup and add
cleaner/water solution until the HI WATER light
energizes, then replace cleaning cup cover. The
machine will clean and then flush three times in
approximately twelve minutes.

Step 6 While the ice machine is in the clean cycle,
prepare for the sanitizing cycle by mixing a solution of
sanitizer and water.

Step 7 To start a sanitize cycle, depress the clean
switch to drain the water from the evaporator. Wait for
the LOW WATER light to energize.

Step 8 Remove cover from the cleaning cup and add
sanitizer/water solution until the HI WATER light
energizes, then replace cleaning cup cover. The
machine will sanitize and then flush three times in
approximately twelve minutes.

Amount of

Luke Warm Water

Amount of Cleaner

Part Number 000000084

1 gallon (4 Liters) 4 ounces (120 ml)

Amount of

Luke Warm Water

Amount of Sanitizer

Part Number 94-0565-3

1 gallon (4 L) Water 1/2 ounce (15 ml)

Part Number 000007661 7/10 23

Step 9 Press the OFF switch, then unscrew the ice
chute connector.

Step 10 Using disposable food service grade gloves
insert one dry sponge into the transport tube going to
the evaporator (NOT the tube going to the bin), then
insert one sponge soaked in the sanitizer water
solution. With the pusher tube supplied with the
sponge kit, push sponges all the way down the
transport tube 16 inches (41 cm) or the length of the
pusher tube.

Step 11 Reconnect chute connector and press the
ON switch. Allow the ice machine to run for 10
minutes, then press the OFF switch. Catch and
remove all sponges and ice from the bin/dispenser.

Step 12 Clean and sanitize the bin /dispenser:

• Disconnect power to the dispenser to prevent
injury.

• Use the cleaner and sanitizer ratios from the
charts on the previous page.

• Heavy accumulations of scale will require removal
of components for cleaning and sanitizing.

• Rinse parts with clear water after cleaning - do not
rinse parts after sanitizing.

Step 13 Spray all interior bin/dispenser surfaces with
sanitizer (do not rinse sanitized areas).

Step 14 Place rocker switch in the ON position and
reinstall all removed panels.

1. Lift out ice damper.

2. Remove ice deflector.
A. Remove the two thumbscrews.

24 Part Number 000007661 7/10

CLEANING THE CONDENSER

Air-Cooled Condenser

Clean the condenser at least every six months. Follow
the steps below.

1. Some models have a washable aluminum filter.
Clean the filter with a mild soap and water
solution.

2. Shine a flashlight through the condenser to check
for dirt between the fins. Blow compressed air
through the condenser fins from the inside or use
a commercial condenser coil cleaner. Follow the
directions and cautions supplied with the cleaner.

3. Straighten any bent condenser fins with a fin
comb.

4. Carefully wipe of f the fan blades and motor with a
soft cloth. Do not bend the fan blades. If the fan
blades are excessively dirty, wash with warm,
soapy water and rinse thoroughly.

!

Warning

Disconnect electric power to the ice machine at the
electric service switch before cleaning the
condenser. The condenser fins are sharp. Use care
when cleaning them.

!

Warning

If you are cleaning the condenser fan blades with
water, cover the fan motor to prevent water damage.

Part Number 000007661 7/10 25

Removal from Service/Winterization

Follow the procedure below.

1. Disconnect the electric power at the circuit
breaker or the electric service switch.

2. Turn off the water supply.

3. Disconnect and drain the incoming ice-making
water line at the rear of the ice machine.

4. Disconnect drain tubing and drain water into
container and discard.

5. Make sure water is not trapped in any of the water
or drain lines.

6. Water cooled - Use compressed air to remove all
water from the condenser.

!

Caution

If water is allowed to remain in the ice machine in
freezing temperatures, severe damage to some
components could result. Damage of this nature is
not covered by the warranty.

26 Part Number 000007661 7/10

This Page Intentionally Left Blan k

Part Number 000007661 7/10 27

Operation

Ice Making Sequence of Operation

NOTE: Flake ice machines use an auger to remove
ice from the evaporator. Occasional noises (creaks,
groans, squeaks, or pops) are a normal part of the ice
making process.

SELF-CONTAINED AIR-COOLED
RF0244/RF0266/RF0385/RF0388/RF0399

When the toggle switch is placed in the “ON” position
the following controls must be in the closed position
before the ice machine will start:

A. Bin Thermostat
B. Low Evaporator Temperature Thermostat

C. Low Water Level Switch

Placing the toggle switch in the ON position starts the
gear motor and refrigeration system. The float valve
controls the water inlet valve and water level. The
freeze cycle ends when ice contacts the bin
thermostat. The ice machine will restart wh en ice no
longer contacts the bin thermostat.

SELF-CONTAINED AIR-COOLED
RF0300

When the toggle switch is placed in the “ON” position
the following controls must be in the closed position
before the ice machine will start:

A. Bin Thermostat

B. Low Evaporator Temperature Thermostat
C. Ice Chute Safety Switch
D. Low Water Level Switch

Placing the toggle switch in the ON position starts the
gear motor and a 10 minute compressor time delay.
The compressor starts and the float valve controls the
water inlet valve and water level. The freeze cycle
ends when ice contacts the bin thermostat. The ice
machine remains off until ice no longer contacts the
bin thermostat.

28 Part Number 000007661 7/10

SELF-CONTAINED AIR-COOLED
RF0650/RF1200/RF2300

When the toggle switch is placed in the ON position
the following controls must be in the closed position
before the ice machine will start:

A. Bin Thermostat

B. High Pressure Cut-out Switch
C. Ice Chute Safety Switch
D. Low Pressure Switch

E. Low Water Level Switch

Placing the toggle switch in the ON position starts the
gear motor. After the rotation speed sensor verifies
10 minutes of correct rotation the time delay ends and
the compressor starts.The ice machine will continue to
make ice until ice contacts the bin thermostat. The ice
machine remains off until ice no longer contacts the
bin thermostat.

Part Number 000007661 7/10 29

QUIETQUBE REMOTE AIR-COOLED MODELS
WITH REMOTE CONDENSING UNITS
RF1200C/RF2300C

30 Part Number 000007661 7/10

SELF-CONTAINED AIR-COOLED &
WATER-COOLED
RN0400

NOTE: Ice machines use an auger to remove ice from
the evaporator. Occasional noises (creaks, groans,
squeaks, or pops) are a normal part of the ice making
process.

Operation

The ice machine will not start until:

A. The compressor rocker switch is moved to

“ON”.

B. Ice does not contact the bin thermostat bulb.
C. The water reservoir is full of water.

With power supplied and the compressor rocker
switch in the ON position, the gear motor and
refrigeration system start. The float valve controls the
water inlet valve and water level. The freeze cycle
ends when ice contacts the bin thermostat. A
20 minute delay period initiates. The ice machine will
restart when ice no longer contacts the bin thermostat
and the 20 minute delay period expires.

Part Number 000007661 7/10 31

SELF-CONTAINED AIR-COOLED &
WATER-COOLED
RN1000/RN1400

NOTE: Ice machines use an auger to remove ice from
the evaporator. Occasional noises (creaks, groans,
squeaks, or pops) are a normal part of the ice making
process.

Operation

The ice machine will not start until:

A. The rocker switch is moved to ON.
B. The transport tube shuttle switch is closed.

C. The water reservoir is full of water.

Placing the toggle switch in the ON position starts the
gear motor and refrigeration system. The water level
sensor controls the water inlet valve and water level.
The freeze cycle ends when ice contact opens the
transport tube switch. A 60 minute time delay period
initiates. The ice machine will restart when the ice
transport tube switch closes and the 60 minute time
delay period expires.

Flush Cycle

The ice machine will automatically flush the
evaporator.

The refrigeration system will shut down and the gear
motor will continue to run. After the flush is complete,
the machine will refill and start the refrigeration system
without a time delay.

32 Part Number 000007661 7/10

QUIETQUBE REMOTE AIR-COOLED MODELS
WITH REMOTE CONDENSING UNITS
RN1000C/RN1200C

NOTE: Ice machines use an auger to remove ice from
the evaporator. Occasional noises (creaks, groans,
squeaks, or pops) are a normal part of the ice making
process.

Operation

The ice machine will not start until:

A. The rocker switch is moved to ON.

B. The transport tube switch is closed.
C. The water reservoir is full of water.

Placing the toggle switch in the ON position starts the
gear motor and energizes the liquid line solenoid
valve. The refrigerant pressure at the condensing unit
increases and the low pressure switch closes and
starts the refrigeration system. The water level sensor
controls the water inlet valve and water level. The
freeze cycle ends when ice contact opens the
transport tube switch. The liquid line solenoid valve
closes and the refrigerant pressure at the condensing
unit drops. The low pressure switch opens and turns
off the refrigeration system. A 60 minute time delay
period initiates. The ice machine will restart when the
ice transport tube switch closes and the 60 minute
time delay period expires.

Part Number 000007661 7/10 33

Ice Production/Quality Check

QUALITY CHECK
Ice quality varies with ambient and water

temperatures, and is measured by the amount of
water in the ice. Generally speaking, higher incoming
water temperature results in lower ice quality. Lower
water temperature results in higher ice quality.

ICE PRODUCTION CHECK
NOTE: Ice production checks that are within 10% of

the charted capacity are considered normal due to
variances in air and water temperatures. Actual
temperatures will seldom match the chart exactly.

1. Run the ice machine a minimum of 10 minutes to
allow the system to stabilize.

2. Catch the ice in a non-perforated container for
7 minutes and 12 seconds or for more accuracy
14 minutes and 24 seconds.

3. Weigh the container and ice, then deduct the
weight of the container.

4. Convert ounces to pounds.

5. Example: 3 lbs. 12 oz. con ver ts to 3.75 lbs.

6. (12 oz. ÷ 16 oz. =.75 lb.)

7. Determine the 24-hour ice pro duction capacity.

A. 7 minutes 12 seconds = Multiply the total ice

weight by 200.

B. 14 minutes 24 seconds = Multiply the total ice

weight by 100.

34 Part Number 000007661 7/10

Thermostat Settings

RF MODELS
Bin Thermostat:

The bin thermostat sensing bulb is located in the ice
chute on modular models and in the bin thermostat
holder on the right side of the bin on self storage
models. The bin thermostat turns the ice machine on
and off as the level of ice in the bin changes. Use the
initial setting from the chart and adjust as required.

Evaporator Low T emperature Safety Thermostat:

The evaporator low temperature safety thermostat
protects the ice machine if the evaporator temperature
is too cold. Refer to chart for correct setting.

1

2

3

4

5

6

7

1

2

3

4

5

6

7

Bin Thermostat

Small Numbers = Less ice in bin

Large Numbers = More ice in bin

Start at Chart Setting, then adjust as

required

Evaporator Low Temperature

Safety Thermostat

Refer to chart for setting

Incorrect settings will cause ice mac hine to

shut off prematurely

Part Number 000007661 7/10 35

Thermostat Setting Chart

Model

Bin Thermostat

Setting

Evaporator

Thermostat Setting

RF0244 5 5
RF0266 5 5
RF0388 5 7
RF0399 5 7
RF0300 4 7
RF0650 4 N/A
RF1200 5 N/A
RF2300 5 N/A

36 Part Number 000007661 7/10

Part Number 000007661 7/10 37

Troubleshooting

Electrical Flowcharts

Diagnostic troubleshooting for the ice machine
involves following flowcharts that are dependant on
symptoms of the failed machine.

Follow the flowcharts for the failure symptom and
model you are working on.

NOTE: Refer to the sequence of operation to
determine where in the sequence the ice machine has
failed. An example would be an ice machine that
energizes the gear motor, but the compressor does
not energize. Following the electrical flowchart will
quickly and easily eliminate non issues.

38 Part Number 000007661 7/10

RF0244/RF0266RF0385//RF00388/RF0399 AIR & WATER

Power Supplied to Ice

Machine?

Toggle Switch In ON

Position?

Move Switch To ON Position

Plug In Ice Machine, Reset BreakerNO

YES

NO

YES

Electrical Flowchar t – RF0244/RF0266/5)RF0388/RF0399 Air & Water

Switch Illuminated?

NO

YES

Replace Switch

Part Number 000007661 7/10 39

YES

Bin Thermostat

Closed?

NO

Replace Thermostat

Ice Contacting

Thermostat?

Remove Ice - Allow

To Warm And Retest

Adjusting Closes

Thermostat?

Verify New Setting Cycles

Machine On/Off

Yes

No No

Yes

Evaporator Safety

Thermostat Closed?

NO

Evaporator Cold?

Replace Thermostat

Allow Evaporator To

Warm And Retest

Adjusting Closes

Thermostat?

Verify New Setting Cycles

Machine On/Off

Yes

No

No

Yes

YES

YES

40 Part Number 000007661 7/10

Low Water Level

Switch Closed?

YES

YES

NO

Reservoir Full Of

Water?

NO

Restore Water Supply / Replace Water Inlet Valve

Power To Water

Inlet Valve?

Yes

Water Level

Switch Closed?

No

No

Repair WiringYes

YES

Replace Switch or Float Assembly

Replace Switch or Float Assembly

Part Number 000007661 7/10 41

Wiring From

Gearmotor Intact?

Line Voltage To

Compressor Relay

Coil?

Gear Motor Runs? NO

YES

NO

YES

Line Voltage To

Gear motor?

Repair WiringNo

Remove Auger

From Evaporator

Ice In Evaporator?

Gear Motor Runs?

Replace Gear Motor

Yes

No

Rebuild

Evaporator

Thaw Evaporator

Yes

Yes

No

Replace Gear Motor

Repair Wiring

Yes

No

42 Part Number 000007661 7/10

Relay Closed?

Line Voltage To

Compressor?

YES

YES

NO

YES

NO

Verify:

Compressor Overload is Closed

Start Components Function

Fan Cycling Control Functions

Condenser Fan Motor Functions

Water cooled only:

Water Regulating Valve Functions

Repair Wiring

Replace Relay

Part Number 000007661 7/10 43

RF0300 AIR & WATER

Power Supplied to Ice

Machine?

Toggle Switch In ON

Position?

Move Switch To ON Position

Plug In Ice Machine, Reset Breaker

NO

YES

NO

YES

Electrical Flowchart – RF0300 Air & Water

Switch Illuminated?

NO

YES

Replace Switch

44 Part Number 000007661 7/10

Bin Thermostat

Closed?

NO

Replace Thermostat

YES

Evaporator Safety

Thermostat Closed?

NO

Chute Switch

Closed?

NO

YES

Ice Contacting

Thermostat?

Remove Ice - Allow

To Warm And Retest

Adjusting Closes

Thermostat?

Verify New Setting Cycles

Machine On/Off

Yes

No No

Yes

Evaporator Cold?

Replace Thermostat

Allow Evaporator To

Warm And Retest

Adjusting Closes

Thermostat?

Verify New Setting Cycles

Machine On/Off

Yes

No

No

Yes

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace Switch

Yes

No No

Yes

Yes

Yes

Part Number 000007661 7/10 45

Low Water Level

Switch Closed?

YES

YES

NO

Reservoir Full Of

Water?

NO

Restore Water Supply / Replace Water Inlet Valve

Replace Switch or Float Assembly

Power To Water

Inlet Valve?

Yes

Water Level

Switch Closed?

No

No

Repair WiringYes

YES

Replace Switch or Float Assembly

46 Part Number 000007661 7/10

Gear Motor Runs? NO

YES

Line Voltage To

Gear motor?

Repair WiringNo

Disconnect

Evaporator From

Gear Motor

Ice In Evaporator?

Gear Motor Runs?

Replace Gear Motor

Yes

No

Rebuild

Or

Replace Evaporator

Thaw Evaporator

Yes

Yes

No

Yes

Gear Motor

Centrifugal Switch

Closed?

Line Voltage To

Compressor Time

Delay?

NO

Repair Wiring

Replace Gear Motor

Yes

No

YES

Part Number 000007661 7/10 47

Contactor Closed?

Line Voltage To

Compressor?

YES

YES

NO

YES

NO

Verify:

Compressor Overload is Closed

Start Components Function

Fan Cycling Control Functions

Condenser Fan Motor Functions

Water cooled only:

Water Regulating Valve Functions

Repair Wiring

Replace Contactor

Line Voltage To

Compressor Contactor

Coil?

NO

Repair Wiring

Replace Time Delay Relay

No

10 Minute Time
Delay Expired?

NO

Wait 10 Minutes - Do Not Install

Compressor Time Delay Jumper

Yes

Power To Contactor Coil?

Yes

Install

Compressor Time

Delay Jumper

Yes

48 Part Number 000007661 7/10

RF0650/RF1200 AIR & WATER

Power Supplied to Ice

Machine?

Toggle Switch In ON

Position?

Move Switch To ON Position

Plug In Ice Machine, Reset Breaker

NO

YES

NO

YES

Electrical Flowchart - RF0650/RF1200 Air & Water

Switch Illuminated?

NO

YES

Replace Switch

Part Number 000007661 7/10 49

Bin Thermostat

Closed?

NO

Replace Thermostat

YES

Low Pressure

Control Closed?

NO

YES

Ice Contacting

Thermostat?

Remove Ice - Allow

To Warm And Retest

Adjusting Closes

Thermostat?

Verify New Setting Cycles

Machine On/Off

Yes

No No

Yes

Evaporator Cold?

Replace LPCO

Allow Evaporator To

Warm And Retest

Refrigerant Pressure

Below Cut-out?

Repair Refrigerant Leak,

Evacuate, Recharge

Yes

No

No

Yes

Yes

High Pressure

Control Closed?

NO

YES

Resets?

Replace HPCO

Clean Condenser,

Check Fan Motor

Check Fan Cycle Control

Refrigerant Pressure

Above Cut-out?

Clean Condenser,

Check Fan Motor,

Check FCC & Refrigeration System

Resets

&

Trips

No

No

Yes

50 Part Number 000007661 7/10

Low Water Level

Switch Closed?

YES

NO

Reservoir Full Of

Water?

NO

Restore Water Supply / Replace Water Inlet Valve

Replace Switch or Float Assembly

Power To Water

Inlet Valve?

Yes

Water Level

Switch Closed?

No No

Repair WiringYes

YES

Replace Switch or Float Assembly

Chute Switch

Closed?

NO

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace Switch

Yes

No No

Yes

Yes

YES

Part Number 000007661 7/10 51

Gear Motor Runs? NO

YES

Line Voltage To

Gear motor?

Repair Wiring

No

Disconnect

Evaporator From

Gear Motor

Ice In Evaporator?

Gear Motor Runs?

Replace Gear Motor

Yes

No

Rebuild

Or

Replace Evaporator

Thaw Evaporator

Yes

Yes

No

Yes

YES

10 Minute Time
Delay Expired?

NO

Wait 10 Minutes - Do Not Install

Compressor Time Delay Jumper

52 Part Number 000007661 7/10

Contactor Closed?

Line Voltage To

Compressor?

YES

YES

NO

YES

NO

Verify:

Compressor Overload is Closed

Start Components Function

Fan Cycling Control Functions

Condenser Fan Motor Functions

Water cooled only:

Water Regulating Valve Functions

Repair Wiring

Replace Contactor

Line Voltage To

Compressor Contactor

Coil?

NO

Repair Wiring

Replace Rotation Sensor/Time Delay Relay

No

Yes

Power To Contactor Coil?

Yes

Install

Compressor Time

Delay Jumper

Part Number 000007661 7/10 53

RF-2300 AIR & WATER

Power Supplied
to Ice Machine?

Toggle Switch In

ON Position?

Move Switch To ON Position

Restore Power, Reset BreakerNO

NO

YES

Electrical Flowchart – RF2300 Air & Water

Switch

Illuminated?

NO

YES

Replace Switch

Immediately

Trips?

Yes

Ohm Compressor
Crankcase Heater
And Toggle Switch

Yes

No

Toggle Switch In

Off Position?

Isolate And Ohm Each

Component - Then Each

Wire If Required

Yes

No

Trips

54 Part Number 000007661 7/10

Bin Thermostat

Closed?

NO

Replace Thermostat

YES

YES

Ice Contacting

Thermostat?

Remove Ice - Allow

To Warm And Retest

Adjusting Closes

Thermostat?

Verify New Setting Cycles

Machine On/Off

Yes

No No

Yes

Yes

High Pressure

Control Closed?

NO Resets?

Replace HPCO

Clean Condenser,

Check Fan Motor

Check Fan Cycle Control

Refrigerant Pressure

Above Cut-out?

Clean Condenser,
Check Fan Motor,

Check FCC & Refrigeration System

Resets

&

Trips

No

No

Yes

Left Side Chute
Switch Closed?

NO

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace Switch

Yes

No No

Yes

Yes

Part Number 000007661 7/10 55

Low Pressure

Control Closed?

NO

Evaporator Cold?

Replace LPCO

Allow Evaporator To

Warm And Retest

Refrigerant Pressure

Below Cut-out?

Repair Refrigerant Leak,

Evacuate, Recharge

Yes

No

No

Yes

Right Side Chute

Switch Closed?

NO

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace Switch

Yes

No No

Yes

YES

YES

Reservoir Full Of

Water?

NO

Restore Water Supply / Replace Water Inlet Valve

Power To Water

Inlet Valve?

Yes

Water Level

Switch Closed?

No No

Repair WiringYes

Replace Switch or Float Assembly

Yes

56 Part Number 000007661 7/10

Gear Motor Runs? NO

YES

Line Voltage To

Gear motor?

Repair WiringNo

Disconnect

Evaporator From

Gear Motor

Ice In Evaporator?

Gear Motor Runs?

Replace Gear Motor

Yes

No

Rebuild

Or

Replace Evaporator

Thaw Evaporator

Yes

Yes

No

YES

10 Minute Time
Delay Expired?

NO

Wait 10 Minutes - Do Not Install

Compressor Time Delay Jumper

Low Water Level

Switch Closed?

NO

Replace Switch or Float Assembly

YES

Yes

Part Number 000007661 7/10 57

YES

NO

Replace Relay

Line Voltage To

Left Delay Relay Coil?

NO

Repair Wiring

Replace Left Rotation

Sensor/Time Delay

No

Power To Left Time

Delay Relay Coil?

Install
Compressor Time
Delay Jumper On

Left Evaporator

Left Delay Relay

Contacts Closed?

Left Delay Relay

Contacts Closed?

Yes

No Yes

YES

NO

Replace Relay

Line Voltage To

Right Delay Relay Coil?

NO

Repair Wiring

Replace Right Rotation

Sensor/Time Delay

No

Power To Right Time

Delay Relay Coil?

Install
Compressor Time
Delay Jumper On

Right Evaporator

Right Delay Relay
Contacts Closed?

Right Delay Relay
Contacts Closed?

Yes

No Yes

YES

YES

YES

58 Part Number 000007661 7/10

Contactor Closed?

Line Voltage To

Compressor?

YES

YES

NO

YES

NO

Verify:

Compressor Overload is Closed

Start Components Function

Fan Cycling Control Functions

Condenser Fan Motor Functions

Water cooled only:

Water Regulating Valve Functions

Repair Wiring

Replace Contactor

Line Voltage To

Compressor Contactor

Coil?

NO Repair Wiring

Yes

Part Number 000007661 7/10 59

60 Part Number 000007661 7/10

RN1000/RN1400 AIR & WATER

YES

Electrical Flowchart – RN100051 Air & Water

YES

Control Board

PWR Light On?

Replace Control Board

NO

Power Supplied to Ice

Machine Control board?

Turn On Switch

NO

YES

NO

Control Board CPU

Light Flashing?

Rocker Switch in ON

position?

NO

Plug In Ice Machine, Reset Breaker

YES

Remove & Restore Line

Voltage, Then Depress

Reset Button On Control

Board

Power Light Off

Test Run & Verify OperationPower Light On

Part Number 000007661 7/10 61

YES

Low Bin Light On?

YES

Ice Holding

Shuttle Open?

Check Wiring, Repair Or Replace

Repair Or Replace Shuttle

Yes

Time Delay Light OFF?

Time Delay

Period Expired?

Wait For Delay To ExpireNO

Clear Ice

Shuttle in up

position?

NO

NO

YES

YES

NO

NO

YES

Light On Sensor

Illuminated?

NO

Depress Reset Button On Control Board

Replace Control Board If Required

YES

62 Part Number 000007661 7/10

Purge Light Off? NO

Purge Rocker Switch

In Off Position?

YES

NO

YES

YES

Move Switch To Off Position

Clear Drain Or Replace Drain Solenoid

YES

No

Water Drains From

Evaporator?

Replace Control Board

Level Ice Machine To Allow Complete Drainage

Line Voltage At

Drain Solenoid?

Ice Machine Level?

Remove & Restore Line

Voltage, Then Depress

Reset Button On Control

Board

No Power @ Solenoid

YES

Power @ Solenoid

NO

Test Run To Verify OperationYES

NO

Part Number 000007661 7/10 63

Drain Clog

Light Off?

NO Water In Drain Trough? YES

YES

YES

Replace Sensor

High Pressure

Light Off?

Clean and Dry

Drain Sensor

Light On

Light Off

Clear Drain

Test Run To Verify Operation

NO

YES

Verify:

Clearances & Ambient Are OK

Filter & Condenser Are Clean

Condenser Fan Motor Functions

Replace High Pressure Cut Out

Water cooled Models:

Water Regulating Valve Functions

NO

Press Control Board Reset

Button To Clear Error

YES

Disconnect

Sensor From

Control Board

Replace Control BoardLight On

Light Off

64 Part Number 000007661 7/10

YES

HI AMPS Light Off?

Yes

Reset Breaker - Press Control Board

Reset Button To Clear Error

Circuit Breaker On

Control Box Tripped?

YES

NO

Line Voltage To

Gear Motor?

NO

NO

Press Control

Board Reset Button To

Clear Error

Replace Control

Board

NO

Gear Motor Runs?

YES

Clean Ice Machine - Install Water Filter - Increase

Cleaning Frequency -Verify Shuttle Shuts Off Ice

Machine – Test Run

Check Wires & Connections

Replace Gear Motor

NO

YES

Part Number 000007661 7/10 65

Low Water

Light Off?

NO

YES

Yes

Sensor Wires

Connected?

Reservoir Full

Of Water?

Connect Sensor Wires

Clean and
Dry Water

Level Probes

Water is Supplied?

Voltage @ Water

Inlet Valve?

NO

YES

YES

NO

Restore Water SupplyNO

YES

Replace Water Inlet ValveYESNO

Voltage @ Water

Inlet Valve?

YES

Reservoir Full

Of Water?

YES NO

Replace Control BoardNO

Press Control Board Reset Button

To Clear Error

YES

66 Part Number 000007661 7/10

High Water

Light Off?

NO

YES

Yes

Control Board

Sending Line Voltage To

Water Valve?

Press Control Board Reset Button

Replace Control Board

Clean, Dry &

Reinsert Water

Level Probes

Voltage @ Water

Inlet Valve?

YES

NO

Replace Water Inlet ValveNO

YES

Replace Sensor – Control Board if RequiredWater Flows

Water Flow Stops Press Control Board Reset Button To Clear Error

Gear Motor

Running?

YES

See Step

HI AMPS LIGHT OFF

NO

Part Number 000007661 7/10 67

Compressor

Running?

NO

YES

Yes

Ice Has Excessive

Water Content?

YES

NO

Verify Water Inlet Valve Closes 100% & Water Level Probe Functions

Replace Control BoardNO

YES

Line Voltage At

Compressor?

YES

NO

Verify:

Compressor Overload is Closed

Start Components Function

Compressor Windings Are OK

Repair Wiring

Compressor

Running?

NO

Test Run To Verify Operation

YES

Line Voltage @

Control Board Compressor

Terminals

68 Part Number 000007661 7/10

RN1000C/RN1200C QUIETQUBE REMOTE CONDENSING

YES

YES

Control Board

PWR Light On?

Replace Control Board

NO

Power Supplied to Ice

Machine Control board?

Turn On Switch

NO

YES

NO

Control Board CPU

Light Flashing?

Rocker Switch in ON

position?

NO

Plug In Ice Machine, Reset Breaker

YES

Remove & Restore Line

Voltage, Then Depress

Reset Button On Control

Board

Power Light Off

Test Run & Verify OperationPower Light On

Electrical Flowcart – RN1000&51& QuietQube Remote

Part Number 000007661 7/10 69

YES

Low Bin Light On?

YES

Ice Holding

Shuttle Open?

Check Wiring, Repair Or Replace

Repair Or Replace Shuttle

Yes

Time Delay Light OFF?

Time Delay

Period Expired?

Wait For Delay To ExpireNO

Clear Ice

Shuttle in up

position?

NO

NO

YES

YES

NO

NO

YES

Light On Sensor

Illuminated?

NO

Depress Reset Button On Control Board

Replace Control Board If Required

YES

70 Part Number 000007661 7/10

Purge Light Off? NO

Purge Rocker Switch

In Off Position?

YES

NO

YES

YES

Move Switch To Off Position

Clear Drain Or Replace Drain Solenoid

YES

No

Water Drains From

Evaporator?

Replace Control Board

Level Ice Machine To Allow Complete Drainage

Line Voltage At

Drain Solenoid?

Ice Machine Level?

Remove & Restore Line

Voltage, Then Depress

Reset Button On Control

Board

No Power @ Solenoid

YES

Power @ Solenoid

NO

Test Run To Verify OperationYES

NO

Part Number 000007661 7/10 71

Drain Clog

Light Off?

NO Water In Drain Trough? YES

YES

YES

Replace Sensor

High Pressure

Light Off?

Clean and Dry

Drain Sensor

Light On

Light Off

Clear Drain

Test Run To Verify Operation

NO

YES

Verify:

Clearances & Ambient Are OK

Condenser Is Clean

Condenser Fan Motor Functions

Replace High Pressure Cut Out

NO

Press Control Board Reset

Button To Clear Error

YES

Disconnect

Sensor From

Control Board

Replace Control BoardLight On

Light Off

72 Part Number 000007661 7/10

YES

HI AMPS Light Off?

YES

Reset Breaker - Press Control Board

Reset Button To Clear Error

Circuit Breaker On

Control Box Tripped?

YES

NO

Line Voltage To

Gear Motor?

NO

NO

Press Control

Board Reset Button To

Clear Error

Replace Control

Board

NO

Gear Motor Runs?

YES

Clean Ice Machine - Install Water Filter - Increase

Cleaning Frequency -Verify Shuttle Shuts Off Ice

Machine – Test Run

Check Wires & Connections

Replace Gear Motor

NO

YES

Part Number 000007661 7/10 73

Low Water

Light Off?

NO

YES

YES

Sensor Wires

Connected?

Reservoir Full

Of Water?

Connect Sensor Wires

Clean and
Dry Water

Level Probes

Water is Supplied?

Voltage @ Water

Inlet Valve?

NO

YES

YES

NO

Restore Water SupplyNO

YES

Replace Water Inlet ValveYESNO

Voltage @ Water

Inlet Valve?

YES

Reservoir Full

Of Water?

YES NO

Replace Control BoardNO

Press Control Board Reset Button

To Clear Error

YES

74 Part Number 000007661 7/10

High Water

Light Off?

NO

YES

YES

Control Board

Sending Line Voltage To

Water Valve?

Press Control Board Reset Button

Replace Control Board

Clean, Dry &

Reinsert Water

Level Probes

Voltage @ Water

Inlet Valve?

YES

NO

Replace Water Inlet ValveNO

YES

Replace Sensor – Control Board if RequiredWater Flows

Water Flow Stops Press Control Board Reset Button To Clear Error

Gear Motor

Running?

YES

See Step

HI AMPS LIGHT OFF

NO

Part Number 000007661 7/10 75

Compressor

Running?

NO

YES

YES

Replace Control BoardNO

YES

Line Voltage At

Liquid Line Solenoid

Valve?

YES

NO

Verify:

Refrigerant Pressure is Higher Than LPCO Cut-in

Both Shut-off Valves are Open

Repair/Replace Liquid Line Solenoid

Locate and Repair Refrigerant Leak

Replace LPCO Switch

Repair Wiring

Low Pressure

Control Closed?

NO

YES

Line Voltage @

Control Board Compressor

Terminals

76 Part Number 000007661 7/10

YES

YES

Repair WiringNO

YES

Line Voltage At

Compressor?

YES

NO

Verify:

Compressor Overload is Closed

Start Components Function

Compressor Windings Are OK

Repair Wiring

Compressor

Running?

NO

Test Run To Verify OperationYES

Contactor Coil Has Line

Voltage?

Contactor Closed?

YES

Replace ContactorNO

Part Number 000007661 7/10 77

ELECTRILOWCHART - /

Ice Has Excessive

Water Content?

YES

NO

Verify Water Inlet Valve Closes 100% & Water Level Probe Functions

Test Run To Verify Operation

78 Part Number 000007661 7/10

RF1200C QUIETQUBE

Power Supplied
to Ice Machine?

Toggle Switch In

ON Position?

Move Switch To ON Position

Restore Power, Reset BreakerNO

NO

YES

Electrical Flowchart - RF-1200C QuietQube

Switch

Illuminated?

NO

YES

Replace Switch

Immediately

Trips?

YES

YES

NO

Toggle Switch In

Off Position?

Isolate And Ohm Each

Component - Then Each

Wire If Required

NO

TRIPS

YES

Isolate And Ohm Switch

Check Wiring From Panel

Test Run

YES

Part Number 000007661 7/10 79

Bin Thermostat

Closed?

NO

Replace Thermostat

YES

Ice Contacting

Thermostat?

Remove Ice - Allow

To Warm And Retest

Adjusting Closes

Thermostat?

Verify New Setting Cycles

Machine On/Off

YES

NO NO

YES

YES

Chute Switch

Closed?

NO

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace SwitchYES

NO NO

YES

Yes

YES

Reservoir Full Of

Water?

NO

Restore Water Supply / Replace Water Inlet Valve

Power To Water

Inlet Valve?

YES

Water Level

Switch Closed?

NO NO

Repair Wiring

Replace Switch or

Float Assembly

YES

80 Part Number 000007661 7/10

Low Water Level

Switch Closed?

NO

Replace Switch or

Float Assembly

Gear Motor Runs? NO

Line Voltage To

Gear motor?

Repair WiringNO

Disconnect

Evaporator From

Gear Motor

Gear Motor

Runs?

Replace Gear Motor

YES

NO

YES

YES

Ice In

Evaporator?

Rebuild

Or

Replace Evaporator

Thaw EvaporatorYES

NO

YES

YES

YES

10 Minute Time

Delay Expired?

NO

Wait 10 Minutes - Do Not Install

Compressor Time Delay Jumper

Part Number 000007661 7/10 81

YES

NO

Replace Relay

NO

Repair Wiring

Replace Rotation

Sensor/Time Delay

NO

Power To Left Time

Delay Relay Coil?

Install

Compressor Time

Delay Jumper On

Left Evaporator

Delay Relay Contacts

Closed?

Delay Relay Contacts

Closed?

Yes

NO

YES

YES

Line Voltage To

Left Delay Relay Coil?

YES

Replace Relay

82 Part Number 000007661 7/10

Low Pressure

Control Closed?

Line Voltage At

Liquid Line Solenoid

Valve?

NO

NO

YES

Verify:

Refrigerant Pressure is Higher Than

LPCO Cut-in

Both Shut-off Valves are Open

Repair/Replace Liquid Line Solenoid

Locate and Repair Refrigerant Leak

Replace LPCO Switch

Replace Relay

YES

High Pressure

Control Closed?

NO Resets?

Replace HPCO

Clean Condenser,

Check Fan Motor

Check Fan Cycle Control

Refrigerant Pressure

Above Cut-out?

Clean Condenser,
Check Fan Motor,

Check Fan Cycle Control &

Refrigeration System

Resets

&

Trips

NO NO

YES

NO

Line Voltage To

Compressor

Contactor Coil?

YES

YES

YES

Repair Wiring

Part Number 000007661 7/10 83

Contactor

Closed?

NO

Replace Contactor

Line Voltage To

Compressor?

YES

YES

NO

Verify:

Compressor Overload is Closed

Start Components Function

Fan Cycling Control Functions

Condenser Fan Motor Functions

Repair Wiring

YES

84 Part Number 000007661 7/10

RF2300C QUIETQUBE

Power Supplied
to Ice Machine?

Toggle Switch In

ON Position?

Move Switch To ON Position

Restore Power, Reset BreakerNO

NO

YES

Electrical Flowchart - RF-2300C QuietQube

Switch

Illuminated?

NO

YES

Replace Switch

Immediately

Trips?

YES

YES

Toggle Switch In

Off Position?

Isolate And Ohm Each

Component - Then Each

Wire If Required

NO

TRIPS

YES

Isolate And Ohm Switch

Check Wiring From Panel

YES

NO

Test Run

Part Number 000007661 7/10 85

Bin Thermostat

Closed?

NO

Replace Thermostat

YES

Ice Contacting

Thermostat?

Remove Ice - Allow

To Warm And Retest

Adjusting Closes

Thermostat?

Verify New Setting Cycles

Machine On/Off

YES

NO NO

YES

YES

Left Side Chute
Switch Closed?

NO

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace Switch

YES

NO NO

YES

YES

Right Side Chute

Switch Closed?

NO

Adjust Or Replace

Actuator

Ice Contacting

Actuator?

Remove Ice And

Retest

Actuator Functions?

Replace Switch

YES

NO NO

YES

YES

86 Part Number 000007661 7/10

YES

Reservoir Full Of

Water?

NO

Restore Water

Supply / Replace

Water Inlet Valve

Power To Water

Inlet Valve?

YES

Water Level

Switch Closed?

NO NO

Repair WiringYES

Replace Switch or Float Assembly

Low Water Level

Switch Closed?

NO Replace Switch or Float Assembly

YES

Do Both Gear

Motors Run?

NO

Line Voltage To

Gear motors?

Repair WiringNO

Disconnect

Evaporator From

Gear Motor

Gear Motor

Runs?

Replace Gear Motor

YES

NO

YES

YES

Ice In

Evaporator?

Rebuild

Or

Replace Evaporator

Thaw Evaporator

YES

NO

YES

Part Number 000007661 7/10 87

YES

10 Minute Time

Delay Expired?

NO

Wait 10 Minutes - Do Not Install

Compressor Time Delay Jumper

Yes

YES

NO

Replace Relay

NO

Repair Wiring

Replace Left Rotation

Sensor/Time Delay

No

Power To Left Time

Delay Relay Coil?

Install

Compressor Time

Delay Jumper On

Left Evaporator

Left Delay Relay

Contacts Closed?

Left Delay Relay

Contacts Closed?

Yes

No Yes

YES

Line Voltage To

Left Delay Relay Coil?

88 Part Number 000007661 7/10

NO

Replace Relay

Replace Right Rotation

Sensor/Time Delay

Right Delay Relay
Contacts Closed?

Right Delay Relay
Contacts Closed?

YES

Line Voltage To

Right Delay Relay Coil?

NO

Repair Wiring

NO

Power To Right Time

Delay Relay Coil?

Install
Compressor Time
Delay Jumper On

Right Evaporator

YES

YES

YES

YES

Replace Relay

NO

Part Number 000007661 7/10 89

Replace Relay

Line Voltage To

Compressor

Contactor Coil?

YES

Low Pressure

Control Closed?

Line Voltage At

Liquid Line Solenoid

Valve?

NO

NO

YES

Verify:

Refrigerant Pressure is Higher Than LPCO

Cut-in Both Shut-off Valves are Open

Repair/Replace Liquid Line Solenoid Locate

and Repair Refrigerant Leak

Replace LPCO Switch

YES

High Pressure

Control Closed?

Resets?

Replace HPCO

Clean Condenser,

Check Fan Motor

Check Fan Cycle Control

Refrigerant Pressure

Above Cut-out?

Resets

&

Trips

NO NO

YES

NO

NO

Clean Condenser,
Check Fan Motor,

Check Fan Cycle Control &

Refrigeration System

YES

YES

Repair Wiring

90 Part Number 000007661 7/10

Contactor

Closed?

NO

Replace Contactor

Line Voltage To

Compressor?

YES

YES

NO

Verify:

Compressor Overload is Closed

Start Components Function

Fan Cycling Control Functions

Condenser Fan Motor Functions

Repair Wiring

YES

Part Number 000007661 7/10 91

Capillary Tube Models

If the gear motor and/or compressor are not energized refer to Electrical Troubleshooting

Refer to Operational Pressure Charts for normal pressures and temperatures

Low on

Refrigerant

Overcharge of

Refrigerant

Non Condensable

in System

Restricted Capillary

Tube

Discharge Pressure Low High High Low

Suction Pressure Low High High Low

Evaporator Inlet Temperature Normal Low High Low

Evaporator Outlet Temperature High Normal High Low

Compressor Discharge Line Temperature

Normal Range =

> 165° @ 70° - 210° @ 110°

> 74°C @ 21°C - 99°C @ 43°C)

High

Increases with

run time

Normal

High

Increases with

run time

High

Increases with

run time

92 Part Number 000007661 7/10

Thermostatic Expansion Valve Models

If the gear motor and/or compressor are not energized refer to Electrical Troubleshooting

Refer to Operational Pressure Charts for normal pressures and temperatures

Low on

Refrigerant

Overcharge

of

Refrigerant

Non

Condensable In

System

Liquid Line Restriction,

Suction Line Restriction,

Or TXV Starving

Flooding TXV or

Loose Sensing

Bulb

Discharge Pressure Low High High Low High

Suction Pressure Low High High Low High

Evaporator Inlet

Temperature

Normal

Normal or

Low

High Normal Normal or High

Evaporator Outlet

Temperature

High Normal High

High > 12° Differential

between Inlet and Outlet

< 10° Differential

between Inlet and

Outlet

Discharge Line

Temperature

High Normal

High

Increases With

Run Time

High

Increases With

Run Time

Low

Decreases With

Run Time

Part Number 000007661 7/10 93

Component Specifications

BIN THERMOSTAT

LOW TEMPERATURE THERMOSTAT

(Evaporator safety thermostat)
(RF0244/RF0266/RF0385/RF0388/RF0399/RF0300
ONLY)

HIGH PRESSURE CUTOUT (HPCO) CONTROL

Setting Cut-Out Cut-In

5

37°F ±1

6°C ±.1

43°F ±1

3°C ±.1

Setting Cut-Out Cut-In

5

37°F ±1

6°C ±.1

43°F ±1

3°C ±.1

Model Cut-Out Cut-In

RF0650/

RF1200/RF2300

435 psig ±10

(3000 kPa ±69)

30 bar ±.69

Manual Reset

RN1000/RN1400

425 psig ±10

(2930 kPa ±69)

29 bar ±.69

287 psig ±10

(1979 kPa ±69)

19.79bar ±.69
Auto Reset

RN1000C/RCU1075
RN1200C/RCU1275

RF1200C/RCU1275

450 psig ±10

(3100 kPa ±69)

31 bar ±.69

295 psig ±10

(2034 kPa ±69)

20 bar ±.69
Auto Reset

RF2300C/RCU2375

450 psig ±10

(3100 kPa ±69)

31 bar ±.69

Manual Reset

94 Part Number 000007661 7/10

LOW PRESSURE CUTOUT (LPCO) CONTROL

FAN CYCLE CONTROL

Model Cut-Out Cut-In

R0F650/

RF1200

7 psig ±2

(.5 bar ±.2)

36 psig ±2

(2.5 bar ±.2)

RF2300

12 psig ±2

(.8 bar ±.2)

Manual Reset

RN1000C/RCU1075
RN1200C/RCU1275

RF1200C/RCU1275
RF2300C/RCU2375

12 psig ±3

(.8 bar ±.2)

35 psig ±5

(2.4 bar ±.4)

Model Cut-Out (Open) Cut-In (Close)

RF0244

230±5

(16 bar ±.34)

250 ±5

(17.2 bar ±.34)

RF0266

230±5

(16 bar ±.34)

250 ±5

(17.2 bar ±.34)

RF0385

260 ±5

(18.1 bar ±.34)

280 ±5

(19.3 bar ±.34)

RF0388

260 ±5

(18.1 bar ±.34)

280 ±5

(19.3 bar ±.34)

RF0399

260 ±5

(18.1 bar ±.34)

280 ±5

(19.3 bar ±.34)

RF0300 60 hz

260 ±5

(17.8 bar ±.34)

275 ±5

(16.6 bar ±.34)

RF0300 50 hz

260 ±5

(17.8 bar ±.34)

280 ±5

(19 bar ±.34)

RF0650 60 hz

230 ±5

(16 bar ±.34)

250 ±5

(17.2 bar ±.34)

RF0650 50 hz

215 ±5

(14.8 bar ±.34)

230 ±5

(16 bar ±.34)

RF1200 60 hz

260 ±5

(17.8 bar ±.34)

275 ±5

(19 bar ±.34)

RF1200 50 hz

240 ±5

(16.6 bar ±.34)

260 ±5

(17.8 bar ±.34)

RF2300

250 ±5

(17.2 bar ±.34)

265 ±5

(18.4 bar ±.34)

Part Number 000007661 7/10 95

FILTER-DRIERS

The size of the filter-drier is important. The refrigerant
charge is critical. Using an improperly sized filter-drier
will cause the ice machine to be improperly charged
with refrigerant.

SUCTION CLEANUP FILTER-DRIER

Contaminated systems must have a suction line filter­drier installed to remove contamination. An access
valve must be installed on the inlet side of the suction
filter to allow pressure drop readings to be obtained.

Important

Driers are covered as a warranty part. The drier
must be replaced any time the system is opened for
repairs.

Suction Line Clean-Up Filter

Model Drier Size

End

Connection

Size

All Models UK-165S 5/8 in.

96 Part Number 000007661 7/10

TOTAL SYSTEM REFRIGERANT CHARGE

NOTE: All ice machines are charged using R-404A
refrigerant.

Important

This information is for reference only. Refer to the
ice machine serial number tag to verify the system
charge. Serial plate information overrides
information listed on this page.

Model Refrigerant Charge

RF0244A 7.5 oz / 210 g
RF0266A 7.5 oz / 210 g
RF0385A 11.25 oz / 320 g
RF0388A 11.25 oz / 320 g
RF0399A 11.25 oz / 320 g
RF0300A 11.25 oz / 320 g
RF0650A 19.5 oz / 550 g
RF1200A 24.75 oz / 700 g

RF1200W 16.25 oz / 460 g

RF1200C 156 oz / 4.42 kg
RF2300C 240 oz / 6.08 kg
RF2300A 63.5 oz / 1800 g

RF2300W 38.75 oz / 1100 g

RN1000A 24 oz / 680 g

RN1000W 15 oz / 426 g

RN1000C 156 oz / 4.42 kg
RN1200C 156 oz / 4.42 kg

RN1400A 34 oz / 652 g

RN1400W 21 oz / 426 g

Part Number 000007661 7/10 97

Charts

Cycle Times/24-Hour Ice Production/
Refrigerant Pressure Charts

These charts are used as guidelines to verify correct
ice machine operation.

Accurate collection of data is essential to obtain the
correct diagnosis.

• Zero out manifold gauge set before obtaining
pressure readings to avoid misdiagnosis.

• Discharge and suction pressure are highest at the
beginning of the cycle. Allow system to stabilize for
a minimum of 10 minutes, then verify the
pressures are within the range indicated.

• Water temperature will affect suction and
discharge pressure - 50°F (10°C) water
temperature will result in pressures on the lower
end of the ranges specified. 90°F (32°C) water
temperatures will result in pressures on the upper
end of the range specified.

98 Part Number 000007661 7/10

RF0244A

SELF STORAGE AIR-COOLED
Characteristics will vary depending on operating

conditions.

ICE PRODUCTION

Air Temperature/

Water Temperature

24 hour

Ice Production

kWh/100 lbs
kWh/45 kg

70°F/50°F 182lbs 7.86

90°F/70°F 150 lbs 7.86
21°C/10°C 83 kgs 7.86
32°C/21°C 68 kgs 7.86

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

220-250

1517-1724

38-40

262-276

90°F PSIG

32°C kPa

300-320

2068-2206

45-51

310-352

110°F PSIG

43°C kPa

360-390

2482-2689

49-55

338-379

Part Number 000007661 7/10 99

RF0266A

SELF STORAGE AIR-COOLED
Characteristics will vary depending on operating

conditions.

ICE PRODUCTION

Air Temperature/

Water Temperature

24 hour

Ice Production

kWh/100 lbs
kWh/45 kg

70°F/50°F 182lbs 7.86

90°F/70°F 150 lbs 7.86
21°C/10°C 83 kgs 7.86
32°C/21°C 68 kgs 7.86

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

220-250

1517-1724

38-40

262-276

90°F PSIG

32°C kPa

300-320

2068-2206

45-51

310-352

110°F PSIG

43°C kPa

360-390

2482-2689

49-55

338-379

100 Part Number 000007661 7/10

RF0385A

SELF STORAGE AIR-COOLED
Characteristics will vary depending on operating

conditions.

NOTE: Preliminary data.

ICE PRODUCTION

Air Temperature/

Water Temperature

24 hour

Ice Production

kWh/100 lbs
kWh/45 kg

70°F/50°F 332 6.41

90°F/70°F 294 5.79
21°C/10°C NA NA
32°C/21°C NA NA

OPERATING PRESSURES PSIG & kPa

Air Temperature

Entering

Condenser

Freeze Cycle

Discharge

Pressure

Suction

Pressure

70°F PSIG

21°C kPa

243-270

1675-1862

31-36

214-248

90°F PSIG

32°C kPa

273-315

1882-2172

34-39

234-269

110°F PSIG

43°C kPa

348-380

2399-2620

38-43

262-296